Home / 109,076.92-150,436.02-76,918.60

Finding the Fourth Proportional to 109,076.92, 150,436.02 and 76,918.60

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Solution

The fourth proportional to 109,076.92, 150,436.02 and 76,918.60 is: 106,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,076.92 : 150,436.02 = 76,918.60 : x
  2. Step 2: Convert to fraction form
    109,076.92/150,436.02 = 76,918.60/x
  3. Step 3: Cross multiply
    109,076.92x = 150,436.02 × 76,918.60
  4. Step 4: Simplify right side
    109,076.92x = 11,571,328,047.97
  5. Step 5: Solve for x
    x = 11,571,328,047.97/109,076.92
  6. Step 6: Final answer
    x = 106,084.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.